Persistent Memory (PMEM) is an exciting storage tier with much lower latency than SSDs. LINBIT has optimized DRBD for when its metadata is stored on PMEM/NVDIMM. This article relates to both: Traditional NVDIMM-N: Some DRAM is accompanied by NAND-flash. On power failure, a backup power source (supercap, battery) is used to save the contents of [...]